21362978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1097}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 39844224

約数和(自身を除く): 18481246

約数列:

[1, 2, 7, 13, 14, 26, 91, 107, 182, 214, 749, 1097, 1391, 1498, 2194, 2782, 7679, 9737, 14261, 15358, 19474, 28522, 99827, 117379, 199654, 234758, 821653, 1525927, 1643306, 3051854, 10681489, 21362978]

約数ペア:

[(1, 21362978), (2, 10681489), (7, 3051854), (13, 1643306), (14, 1525927), (26, 821653), (91, 234758), (107, 199654), (182, 117379), (214, 99827), (749, 28522), (1097, 19474), (1391, 15358), (1498, 14261), (2194, 9737), (2782, 7679)]